What to observe

• Abnormal distortion concentrated in new growth
• Bronzing, roughened tissue, or unusual leaf margins
• Symptoms that persist despite otherwise reasonable nutrition and environment
• Very small organisms requiring strong magnification or microscopy

Common look-alikes

• Herbicide or spray injury
• Nutrient imbalance
• Heat or light stress
• Viral or viroid-associated distortion
• Genetic/developmental abnormalities

Evidence that improves confirmation

• Use suitable magnification or microscopy on symptomatic growing points
• Sample more than one plant and location
• Consider professional identification when the organism cannot be resolved reliably

Risk context

• Symptoms can be severe before mites are noticed
• Plant-to-plant movement and contaminated tools/material can spread infestations
• Misdiagnosis can lead to repeated unnecessary input changes

Management principles

• Isolate suspicious material until identification improves
• Strengthen sanitation and movement controls
• Preserve samples/photos and repeat scouting
• Use lawful, crop-appropriate controls only after the target is reasonably established

Keep the conclusion proportional to the evidence

Use a confirmed identification when available. When evidence is incomplete, label the conclusion as a suspicion or differential rather than presenting it as proven.

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